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Takagi Mobius

tankless water heaters index page - water heater anode rods, elements, valves etc.
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Rheem tankless water heaters - Chronomite instant flow - Chronomite instant temp water heaters
list of many commercial products we offer - stainless steel z-vent systems


The manufacturer states that this unit can only be purchased and installed by special factory-trained, skilled technicians who have taken an extensive learning course in the installation of this product. We can only sell this tankless water heater to qualified installers. There is no warranty if this specific model is not installed by a licensed, qualified contractor.

The Takagi models listed below don't have this restriction by the manufacturer:
to Takagi T-KJr (TKJr) - to Takagi T-K1S (TK1S) - to Takagi T-K3 (TK3) - to Takagi T-K3-OS - to Takagi T-H1

Takagi Mobius T-M1 (TM1) Tankless Water Heater
Tankless Mobius TM1 by Takagi This tankless gas water heater features:
  • Connect up to 20 units together
  • Automatic water valves
  • Saves space
  • Electronic ignition, no standing pilot light
  • Reduce utility costs by more than 45%
  • Replaces inefficient boilers
  • Computer safety devices
  • Indoor & outdoor models
  • Natural gas or propane
We cannot show pricing on the web for these items. To request a price quote, select the items you are interested in by clicking the box in the "Select Item(s)" column next to the product. Click the button below the accessories to add items to your quote list.
Takagi Mobius T-M1 Water Heaters
click for Takagi tankless water heater comparison chart
Model # Description Select Item(s)
T-M1NG Tankless Water Heater - Natural Gas, 235,000 BTU's
T-M1LP Tankless Water Heater - Propane, 235,000 BTU's
 
Accessories for Takagi T-M1
to stainless steel gas venting products
Model # Description Select Item(s)
The standard temperature setting is 122°F and is only adjustable with purchase of the TK-RE10 temperature remote controller.
TM-RE10 Temperature Remote Controller
TM-RE20 Main Multi-System Controller
TK-TV01 Wall Ventilation Terminator
TK-BF01 replaces (TK-TV03) Back Flow Prevention Kit
TK-TV06 Outside Vent Kit for T-M1
 
Pressure Relief Valves
A pressure relief valve is required for all tankless water heaters. In some areas, a temperature and pressure relief valve is required. Check your local plumbing code for more information.
Pressure Relief Valve - Brass - 3/4" - 150 PSI
Temperature and Pressure Relief Valve - up to 200,000 BTU
 
Isolation Valves
Complete inlet/outlet valve system that provides everything you need for a secure installation including full port testing and flushing of the system with easy to install union connections.
Isolation Valve - Set (Hot & Cold) 3/4" IPS Union x 3/4" IPS
Isolation Valve - Set (Hot & Cold) 3/4" IPS Union x 3/4" Sweat
 
Gas Connectors
Stainless Gasflex - 1" OD (3/4" ID) x 24" - with adapter to 3/4" FIP x 3/4" MIP
Gas Ball Valve 3/4"
 
Hot Water Heater Scale Inhibitor System
Features: inhibits scale build-up, helps protect piping from corrosion, maintains efficiency & extends life of system, 3/4" NPT, 6 GPM, cold water feed line, made from FDA CFR-21 compliant materials, suitable for drinking and cooking water and all food applications, and effective on all types of hot water systems-boilers, tankless, and tank-type (gas or electric). Replacement cartridges (AP431) are available for these in-line scale inhibitor systems.
Hot Water Heater Scale Inhibitor System
Replacement filter for hot water heater scale inhibitor system
Note: Recommended time to change/replace filter cartridge is 6 months.
Purchase a replacement cartridge to have on hand when needed.

We cannot show pricing on the web for these items.
To request a price quote, select the items you are interested in by clicking
the box in the "Select Item(s)" column next to the product.
Click the button below to add items to your quote list.

don't forget the vent pipe!


Takagi T-M1 Specifications
Dimensions (H x W x D) 24" x 18" x 9"
Net Weight 85 lbs.
Power input Natural Gas 25,000 - 235,000
Propane 25,000 - 225,000
Thermal Efficiency Natural Gas 82%
Propane 84%
First Hour Rating 300 gallons per hour
Gas Connection 3/4" Male NPT
Water Connection 3/4" Male NPT
Water Pressure Min: 15 PSI, Max: 150 PSI
Natural Gas Inlet Pressure Min: 5.0" w.c. Max: 10.5" w.c.
Propane Gas Inlet Pressure Min: 11" w.c. Max: 14" w.c.
Minimum Flow to Activate Burners 3/4 GPM
Vent pipe size 4" round power vent
60°F Temp. Rise 5.5 GPM
70°F Temp. Rise 4.7 GPM
80°F Temp. Rise 4.0 GPM
90°F Temp. Rise 3.7 GPM
Electric Supply 120 V, 0.8 A
Output Temperature (Adjustable) 95°F - 176°F
Flow Rate (Maximum) 9.6 GPM
Vent pipe size 4" round power vent

The Takagi Mobius must be installed by a certified plumber. Warranty void otherwise.

Be sure to install only code approved power vent piping.

to other tankless heaters Frequently Asked Questions


Takagi Mobius T-M199 Tankless Water Heater

Takagi Mobius T-M199 Tankless Water Heater
Image of Mobius T-M199 This Mobius T-M199 tankless water heater features:
  • More efficient than traditional tank water heaters - only heats water when you need it
  • Four temperature settings (set by dip switch): 113°F, 122°F, 140°F, and 182°F
  • Can be installed in parallel with up to 20 units per controller (for a total of 108 GPM at 60°F temperature rise)
  • Average temperature rise 60°F at 5.4GPM
  • Option of gas or propane tankless water heater
  • Can be converted to a direct vent model
  • No big tank to hold water - saves you space
  • Electronic ignition - no standing pilot light
  • Click for temperature at various flow rates
Model # Description Select Item(s)
Mobius T-M199 Propane Powered Mobius T-M199 Tankless Water Heater
Mobius T-M199 Gas Powered Mobius T-M199 Tankless Water Heater
Accessories for Mobius Takagi T-M199
to stainless steel gas venting products
Model # Description Select Item(s)
FVMX-5C Temperature and Pressure Relief Valve - 200,000 max (required for all water heaters)
TK-TV11 Direct Vent Conversion Kit
TK-TV05 Wall ventilation terminator for direct vent system. Required for the T-KD20. Also for the T-K3, T-H1, and T-M199.
TM-RE30 replaces TM-RE10 Temperature Remote Controller - For TM-1, T-M199 & T-K3
TM-RE20 Main Multi-System Controller
TK-TV01 Wall Ventilation Terminator
TK-TV03 Back Flow Prevention Kit
TK-TV06 Outside Vent Kit for T-M199
 
Isolation Valves
Complete inlet/outlet valve system that provides everything you need for a secure installation including full port testing and flushing of the system with easy to install union connections.
Isolation Valve - Set (Hot & Cold) 3/4" IPS Union x 3/4" IPS
Isolation Valve - Set (Hot & Cold) 3/4" IPS Union x 3/4" Sweat
Pressure Relief Valve for Isolation Valves - Brass - 3/4" - 150 PSI
 
Gas Connectors
Stainless Gasflex - 1" OD (3/4" ID) x 24" - with adapter to 3/4" FIP x 3/4" MIP
Gas Ball Valve 3/4"
 
Hot Water Heater Scale Inhibitor System
Features: inhibits scale build-up, helps protect piping from corrosion, maintains efficiency & extends life of system, 3/4" NPT, 6 GPM, cold water feed line, made from FDA CFR-21 compliant materials, suitable for drinking and cooking water and all food applications, and effective on all types of hot water systems-boilers, tankless, and tank-type (gas or electric). Replacement cartridges (AP431) are available for these in-line scale inhibitor systems.
Hot Water Heater Scale Inhibitor System
Replacement filter for hot water heater scale inhibitor system
Note: Recommended time to change/replace filter cartridge is 6 months.
Purchase a replacement cartridge to have on hand when needed.


Takagi T-M199 Specifications
Natural gas input range Min. 25,000Btu Max. 199,000Btu
LPG input range Min. 25,000Btu Max. 199,000Btu
Gas connection 3/4" NPT
Water connection 3/4" NPT
Natural gas pressure inlet Min. 5.0" WC Max. 10.5"WC
LP gas pressure inlet Min. 11"WC Max. 14"WC
Weight 70lbs
Dimensions 23.6" x 18.5" x 8.9"
Electrical supply AC 120V (60 Hz)
Water pressure 15PSI - 150PSI
Natural manifold pressure 1.8" WC
LP manifold pressure 2.3" WC

Takagi Mobius T-M1

Takagi Mobius T-M1"I live in an area where it freezes, what can I do to protect the heater from freezing?"
Takagi Mobius T-M1 We recommend you use the TK-TV03 exhaust backflow prevention kit to prevent cold air from entering the vent and causing the heat exchanger to freeze.

instant water heaters"What's the difference between a conventional flue and a direct vent?"
instant water heatersA conventional flue is what most people are familiar with. It typically consists of a double-wall flue pipe going from the top of the heater through the roof, venting outside. The fixture draws its combustion air from the space around it (utility room, garage, hallway, etc.). A direct-vent unit on the other hand, both vents and draws its combustion air through a specially designed pipe from the outside via an adjacent wall.

"Your products specify the 'temp. rise' based on the GPM flow; what do you mean by this?"
Temperature rise is the amount the heater raises the temperature of the incoming water, based on the flow rate shown of that water.

Takagi Mobius T-M1"Will an instantaneous water heater save me money on my utility bills?"
Takagi Mobius T-M1 Yes, in most applications you will see a savings. There are some variables that could reduce the amount you save. One example is you will not run out of hot water, so longer showers could cut into your savings. Also, the cost of electricity, propane and natural gas in your area will affect the amount of money saved. The higher the cost for the energy type used to heat your water, the quicker you will recover the higher initial cost of installing a tankless versus tank style water heater.

Positives:

    You will never run out of hot water. "You want an hour long shower? No problem!"
    Electric units can be installed at the point of use.
    You're not paying energy costs to heat water 24 hours a day.
    They're easy to install.
    Our electric units don't require a T&P valve. (No tank!)
    Installing a tankless water heater will indeed be a bonus to the environment (why should we choose wastefulness when we're talking about finite natural resources)?

Negatives:

    They all need a minimum flow rate & pressure to turn on.
    The faster water flows through them, the lower the temperature rise. So,if you expect to take a shower while the clothes washer is running, you will need to select a unit sized to your hot water flow requirements. (Gas units handle this a little better than electric models)
    Electric units need heavy gauge wire. Example: the 9.5kw must have 8ga wire and a 50amp breaker.
    Gas units need a much larger, special flue pipe and larger gas supply than a conventional water heater.
    At times they can produce very hot water. It's easier to get scalded.
    Gas units are more complicated than a conventional water heater.
    With some brands, parts are hard to find (not a negative if you originally purchase from us, as we like to carry parts for the units that we sell).

Summary:
Tankless water heaters have their place. They're not "the answer" to every hot water need, but if they're used correctly they can be the solution to many of them.

Takagi Mobius T-M1"Why can't I install the Mobius T-M1 myself?"
Takagi Mobius T-M1 Improper installation of the T-M1 could create carbon monoxide gas and other dangerous gases. Installation of this unit by persons other than professionally trained technicians voids the warranty.

instant water heaters"If these units don't have a tank, how do they know when to turn on?"
instant water heatersThese tankless water heaters have a flow switch built into them. When you turn on the hot side of a faucet the water begins moving. Once the water is traveling at minimum flow rate for the heater, the flow switch will turn on the gas or electricity.

questions about tankless water heaters "Will the Hot Water Heater Scale Inhibitor System change the taste or odor of water?"
answers about tankless water heaters No. The active ingredient is colorless, tasteless, and odorless when used as recommended.

questions about tankless water heaters "Is the Hot Water Heater Scale Inhibitor System's active ingredient safe?"
answers about hot water heater scale inhibitor Yes! All ingredients used are 100% pure food grade materials. They are approved by the USDA and meet purity requirements as a food additive by the World Health Organization.

questions about tankless water heaters"Can I replace my existing tank type water heater with a tankless water heater?"
answers about hot water heater scale inhibitor Yes, but there are specific requirements that will need to be addressed. Gas units will require a larger, special vent pipe and a larger gas supply line that not only will supply the water heater, but all other appliances on that gas pipe run. Electric units will require larger gauge wire and breakers than most tank type water heaters.

questions about hot water heater scale inhibitor "What are the best reasons to install a Scale Inhibitor System?"
answers about tankless water heaters The system inhibits scale build-up and protects the piping from corrosion, which helps maintain efficiency and extends the life of the system.

questions about hot water heater scale inhibitor "What happens if you don't change cartridges often enough on the Scale Inhibitor System?"
answers about tankless water heaters The original water condition and problem will reappear. Hardness will begin to build up again, which you want to avoid.

questions about tankless water heaters "How does the Hot Water Heater Scale Inhibitor System prevent corrosion?"
answers about tankless water heaters It forms a thin protective layer on the inside of pipes and metal parts. This film or layer is microscopic in thickness and will not build up over time.

Help save our environment by saving energy.
Stand-by heat loss wastes a LOT of energy.
Installing tankless water heaters saves
energy, as well as your pocket book in the
long run. Think future! Think green.
Think Tankless!


We offer many thoughts (quotes) to ponder, such as:
"I love to travel, but hate to arrive." - Albert Einstein

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